Service complaint

Hi there<br> <br> I have a query regarding my Absa Vehicle account. I app**** for debt restructuring in September last year and I paid for the month thereafter i requested to withdraw from the process.. I was then worried about my AVF account and called Absa to find out how I could make payment while the review cancellation had not been finalised. I called several times and was advised to wait and let the process be finalise thereafter someone would contact me to make an arrangement... The next thing I'm receiving calls from an external debt collector demanding immediate payment or repossesion. .meanwhile I have not received anything in writing and negotiations are being refused even though I'm willing to make payments.all in getting are calls and messages from the collector. is this legal?